Argonne Leadership

UChicago Argonne, LLC

  • Robert J. Zimmer, President, the University of Chicago; Chairman, UChicago Argonne, LLC


The Argonne Directorate consists of Argonne’s most senior managers. They are:

  • Paul Kearns, Laboratory Director
  • Kim Sawyer, Deputy Laboratory Director and Chief Operations Officer (COO)

Associate Laboratory Directors

Associate Laboratory Directors report directly to the Argonne Directorate. Each Associate Laboratory Director manages a number of research divisions. Argonne’s Associate Laboratory Directors are:

  • Stephen K. Streiffer, Associate Laboratory Director, Photon Sciences
  • Rick L. Stevens, Associate Laboratory Director, Computing, Environment and Life Sciences
  • Kawtar Hafidi, Associate Laboratory Director for the Physical Sciences and Engineering Directorate
  • Suresh Sunderrajan, (Interim) Associate Laboratory Director for Energy and Global Security
  • Ushma Kriplani, (Interim) Associate Laboratory Director for the Science & Technology Partnerships and Outreach.

Other Key Personnel

  • Glenn E. McKeown, General Counsel
  • Gail Stine, Senior Director, Environment, Safety, Health, and Quality
  • Jeffrey Purnell, Chief Financial Officer
  • Julie Nuter, Senior Director & Chief Human Resources Officer
  • Stu Hannay, Senior Director, CIO
  • Karen Hellman, (Interim) Senior Director, Infrastructure Services
  • Megan Clifford, Chief of Staff